Features: Enhances your cycling performances with our precisions designs bike cassette sprocket, ensuring smooth and efficient gear shifts on any terrain. Make from aluminum alloy, this stable cassette sprocket is engineered for great transitioning between gears, offering a great biking experience. Great for cycling enthusiasts who demand high performances from their road bikes and value the smoothness and efficiency of their ridings. Whether you're embarking on long distances journey or bike races, our cassette sprocket provide the reliability need for great performances. Upgraded your road bike with our light weight yet firm cassette sprocket, craft for cyclists seek to achieve great ridings precisions and speed. Specifications: Materials: Aluminum Alloy Color: As The Picture Shows Package Weight: approx.950g Styles Optional: 2 Styles are Available as Shown in the Picture. Size: approx.25x15cm/9.84x5.90in (More Size Detail, Please See Picture.) Package Includes: 1 Set of Bikes Crankset note: Please allow 1-2cm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!